USPTO Patents Application 10069565

70

ABSTRACT OF THE DISCLOSURE

METHOD AND INSTALLATION FOR REMOVAL OF METAL CATIONS
FROM A LIQUID BY RESINS WITH POLYAZACYCLOALKANES GRAFTED
ON A SUPPORT

The invention is related to a method and an
installation for removal of metal cations contained in a
liquid, in which said liquid is brought into contact at a
temperature greater than or equal to 60**C with a chelating
ion exchange resin formed from a polyazacycloalkane
grafted on a solid support, said resin having been
conditioned, previously to said contacting, at a pH of 4
to 6.

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B 13276.3 PA